Table 6 In-control ARL performance of the standard t-CUSUM chart and the risk-adjusted t-CUSUM control chart
From: Risk-adjusted zero-inflated Poisson CUSUM charts for monitoring influenza surveillance data
Case(a) | Case(b) | Case(c) | ||||
|---|---|---|---|---|---|---|
Standard CUSUM | Risk-adjusted CUSUM | Standard CUSUM | Risk-adjusted CUSUM | Standard CUSUM | Risk-adjusted CUSUM | |
OR = 1.5 RR = 1.5 | 115.6095 | 400.8448 | 83.9269 | 404.663 | 170.3881 | 401.9765 |
OR = 1.5 RR = 2 | 108.8625 | 399.7592 | 75.3776 | 397.4291 | 153.1147 | 399.5158 |
OR = 2 RR = 1.5 | 133.4295 | 399.8585 | 94.1814 | 404.4315 | 183.7638 | 399.4048 |
OR = 2 RR = 2 | 111.4156 | 399.4888 | 78.5196 | 404.2784 | 167.9807 | 401.3558 |